PARMACELLA. LIMAX. TESTACELLA. 19 
spiral ; on the other broader, thinner, and fiat- 
tened. 
D. Rumpus. S. 255. 
LES LIMACIENS. 
PARMACELLA. TERRESTRIAL. 
A rare genus of slugs, bearing a testaceous plate 
enveloped in a fleshy shield. 
P. cALYCULATA. S. 256. 
LIMAX. TERRESTRIAL. 
Shell small, extremely thin, enclosed in a coriaceous 
shield, oblong-ovate, not convolute, Lut with a 
cavity at top. 
L. cINEREUS. Small, very thick and hard, 
variously formed, rarely concave, and easily dis- 
tinguished by its short obliquely placed keel. 
ak. 17. 
TESTACELLA. TERRESTRIAL. 
Shell very small, external, somewhat ear-shaped ; 
apex obsoletely spiral; aperture very large, 
aval, with outer lip inflected. 
T. HALIOTOIDEA. B. E. 464. 3. 
